Cas 157869-09-5,Benzenamine, 2-(3-phenoxy-1-propynyl)-

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Check Digit Verification of cas no

The CAS Registry Mumber 157869-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,6 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 157869-09:
(8*1)+(7*5)+(6*7)+(5*8)+(4*6)+(3*9)+(2*0)+(1*9)=185
185 % 10 = 5
So 157869-09-5 is a valid CAS Registry Number.

157869-09-5Upstream product

157869-09-5Downstream Products

1346018-92-5 1-(2-(3-phenoxyprop-1-ynyl)phenyl)urea

157869-09-5Relevant articles and documents

Bronsted acid-promoted sequential hydroarylation-hydroamidation of arene-tethered 1-(2-alkynylphenyl)ureas: Direct access to 4,4-spiro-3,4-dihydro- 2-(1H)-quinazolinones

Wang, Honggen,Zhao, Jiaji,Zhang, Jiancun,Zhu, Qiang

supporting information; experimental part, p. 2653 - 2658 (2011/12/01)

A Bronsted acid-promoted approach to 4,4-sipro-3,4-dihydro-2-(1H)- quinazolinones from arene-tethered 1-(2-alkynylphenyl)ureas has been developed. The reaction is initiated by intramolecular hydroarylation followed by hydroamidation, assisted by intramole

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157869-09-5